WASHINGTON — Federal investigators must probe Hillary and Bill Clinton’s finances, the author of a new book targeting the power couple’s foreign donations insisted Sunday.

“You see a series of actions that are enormously beneficial … for the benefit of Clinton donors and I think this warrants investigation,” Peter Schweizer, who wrote “Clinton Cash,” said on Fox News Sunday.

Schweizer said Sunday he has no “direct evidence” that Hillary Clinton intervened on behalf of these foreign interests. But he argues a federal investigation could search for improper links using subpoena powers, much like it did in the bribery case against now-indicted Sen. Bob Menendez (D-NJ) and a public corruption case against convicted former Virginia Gov. Bob McDonald, a Republican.

“I am a journalist, I don’t have access to government records,” Schweizer said. “I certainly don’t have access to her emails.”

Hillary Clinton’s campaign said the book is filled with false allegations and is part of some conservative conspiracy.

Schweizer is a former speechwriter in the George W. Bush administration and editor for the conservative news site Breitbart.

“By finally admitting that he omitted key details and has no direct evidence, the author of ‘Clinton Cash’ just confirmed what many media reports had already made clear — ‘Clinton Cash’ is nothing more than a tangled web of conspiracy theories backed by no actual evidence,” Clinton campaign spokesman Josh Schwerin said Sunday.

In his book, Schweizer outlines several “troubling” patterns that he believes are beyond coincidence.

Among his examples are speaking fees for Bill Clinton ratcheted up when Hillary Clinton became secretary of state and in countries with business interests before the State Department. Schweizer also alleges Bill Clinton and the foundation accepted money from business interests in Haiti, Kazakhstan and Russia that were ultimately approved.

“Is it coincidence in a pattern that we see repeated dozens of times where large Clinton supporters have business before the State Department, they make large payments and favorable actions are taken?” Schweizer said. “I don’t think coincidences occur that frequently.”